Chauffe eau électrique : Tester la résistance

Video: Electric Water Heater: Testing the Resistance https://www.batirsamaison.net/chauffe... How to test the resistance of an electric water heater, a component often responsible for hot water failure. How to test the resistance of an electric water heater. Here is a summary of the steps to test the resistance: Make sure to turn off the power to the water heater before starting any work. Remove the protective cover from the water heater's electrical connection to access the heating elements, including the thermostat and the steatite resistor. Check that there is no voltage in the power conductors using a screwdriver tester or a multimeter in the voltmeter position. To test the resistance, disconnect the two conductors supplying power to the thermostat resistor to isolate it from anything that could distort the measurement. Use a multimeter in the ohmmeter setting (200 ohms) and place the multimeter probes in contact with the resistor terminals. The resistor should display an ohmic value. If the multimeter display shows no value, this means the resistor is defective and the filament is likely broken. If a value is displayed, for example, 22.04 ohms, check if this value corresponds to the "factory setting" of the water heater resistor. To do this, use Ohm's Law by dividing the resistor's power (indicated on the water heater, for example, 2400 watts) by the electrical system voltage (which fluctuates between 220 and 230 volts) to obtain the maximum resistance value (in this example, 22.05 ohms). If the measured value corresponds to the factory setting, this indicates that the resistor is in good working order. Remember to always take the necessary safety precautions when testing an electric water heater. To view the written and illustrated version, visit the blog: http://www.batirsamaison.net/ Subscribe to be notified of future posts. If you enjoyed this video, please feel free to Like it by clicking the "Like" icon. Thank you!